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(No Model.) 4 sheets-sheen 1.

0. BRYANT. MACIIIIII'J PoR BORING AND MILLING RADIATOR SRGTIIJNS.1

No. 434,079. Patented Allg. 12,1890.

Witnesses. fwinrymt, Inventor Attorney' (No Neder.) 4 sheets-Sheena' .0. BRYANT.' MACHINE FOR-BORING AND MILLING RADIATOR SECTIONS. l No. 434,079. Patented Aug. 12, 1890'.

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(No Model.)

, 0.BRYANT.

MACHINE FOR BORING AND MILLING RADIATOR SECTIONS. No. 434,079.

. Patented Aug. 12, 1890.

Um @7m41- Inventor.

.By amay.

(No Model.) 4 sheets-sheet 4.

O. BRYANT. MAORINR POR BORING AND MILLING RADIATOR SECTIONS. No. 434,079.Y Patented Ag. 12, 1890.-

01'1'1'71 ryanl nventor Attorney.

UNITED STATES ATENT OFFICE.

ORRIN BRYANT, OF BUFFALO, NEW YORK, ASSIGNOR TO THE PIERCE STEAM HEATING COMPANY, OF SAME PLACE.

MACHINE FOR BORING AND MILLING RADIATOR-SECTIONS.

SPECIFICATION forming part of Letters Patent No. 434,079, dated August 12, `1890.

Application filed February 14, 1890. Serial No. 340,500. (No model.)

To all whom it may concern:

Be it known that I, ORRIN BRYANT, a citizen of the United States, residing in Buffalo, in the county of Erie and State of New York, have invented certain new and useful Improvements in Machines for Boring and Milling Radiator-Sections, oi' which the following is a specification.

The object of myinvention is to produce a machine that will automatically bore and mill or face both sides of a radiator-section while in transit on the machine from the point at which it is put'on and secured to the point from which it is released and removed, all of which will be fully and clearly hereinafter described and claimed, reference being had to the accompanyin gdrawin gs, in which- Figure 1 is a side sectional elevation showing enough of the machine for illustration. Fig. 2 is a top plan View of the machine. Fig. 3 is a detached side elevation of the grooved cam for operating the boring-bar, showing the slightly-inclined portion of the cam for forcing the boring-bar and boring down through the upper side of the radiator-section, the steeper portion for causing the boring-bar to drop down to the inside surface of the opposite side. of the section, and the following slightly-inclined portion of the cam for giving the boring-bar its proper boring movement through the opposite side of the section. Fig. et is a detached side elevation of the boring-bar grooved ca1n,showing at the left side the horizontal portion of the cam for holding the boring-bar stationary while the section is being put onto the machine,V the short drop portion for dropping the boring-bar down to the side of the radiator, and the following portion of the cam for giving the boring-bar its proper movement downward while boring. Fig. 5 is a top plan view of the grooved boring-bar cam, showing, also, a horizontal seotion through the stationary vertical shaft to which it is rigidly secured. Fig. Gis a sectional elevation showing a portion of the vertical stationary shaft to which the boring-bar cam is rigidly attached, and a section through the supportingsleeve and large combined spur and bevel gear-wheel which rotate on it. Fig. 7 is a side sectional elevation showing a side elevation of one of the boring-bars and a of the stationary horizontal spur-Wheel and platform around which the operating portion of the machine rotates while operating upon a radiator-section, showing, also, the face ot' one of the milling-tools for milling the under side ot' the radiator-section, and a top view of the curved inclined face-cani for lifting said milling-tool up at the .proper time for doing its work. t

In said drawings, 1 represents the supporting base-piece of the machine. It is made of cast-iron, and is heavy enough to support the mechanism above it. At the top of the supporting-base is a stationary horizontal spur gear-wheel 2, which is rigidly secured to the base ot the machine, and is substantially in a central position over it. In the ,center of the wheel 2, rigidly secured to the base, is a vertical shaft 3, made sufficiently heavy and strong to support all the moving machinery above it. At the top ot the shaft 3 is rigidly secured to it an overhanging arm 4, made very heavy and strong. In this arm 4 is mounted in suitable bearings 5 and 6 (see Figs. 1 and 2) the driving-shaft 7, having at its outer end the driving-pulley 8, and on its inner end is a bevel-pinion 9, which gears in with a bevel gear-Wheel 10, forming a part or rigidly secured to the spur gear-wheel 11. Both the wheels 10 and 1l run loosely on the vertical shaft 3, and the spur-wheel 11 rests upon the grooved boring-bar cam 12, which is fixed or stationary, beingrigidly secured to the vertical shaft 3. Below the boring-bar cam l2 is a sleeve 13, mounted on the vertical shaft 3 so as to turn thereon. It .is long enough to iill the space between thev under side of the boring-bar cam 12 and the top of the stationary spur-wheel 2. To the lower portion of the sleeve 13 is rigidly attached a series of arms 14, extending radially outward IOO over or beyond the base 1, and above the arms 14 is a corresponding series of shorter projecting arms 15, firmly secured to the sleeve 13. At the top of the sleeve 13 is rigidly secured another corresponding series of arms 16. The arms 14, 15, and 16 all extend radially outward from the sleeve 13, to which they are firmly secured, and all extend in the same line directly above each other.

In the arms and 16 are vertical bearings 17 and-18, in which are mounted the boringbars 19. rlhese boring-bars 19 are capable ot' both rotary motion and a vertical up-anddown movement in their bearings, and are constructed of several parts, as follows, (see Fig. 7, in which one of these bars is shown in sectionz) 19 is the boring-bar proper, which passes down through the sleeve 20, and to which it is rigidly secured at any suitable point longitudinally within the sleeve by a set-screw 21. The sleeve 20 is provided with two collars 22 and 23, (see Fig. 7,) between which fits a surrounding sleeve 24 in the bearing 18. From this sleeve projects a strong pin 25, upon which is mounted a friction-roller 26. These friction-rollers 26 (one for each boring-bar) all project into the cam 12, which gives the several boring-bars and their operating parts in succession their vertical movements, and at the same time they have a rotary movement in the sleeve 24. The sleeve 24, while it has a free longitudinal movement in its bearing, is prevented from rotating therein by a feather 24f.

The vertical movements of the boring-bars in their travel around the cam are illustrated on Sheet 2, as follows: First, starting at the beginning of the horizontal or straight portion a of the groove in the cam 12, (see Fig. 4,) starting from a, the boring-bar will be held up by the friction-roller 26 stationary until it reaches the point 5, to give time to take oft" and put on a radiator-section. It now takes a drop as the friction-roller moves from h to c, thereby bringing the boring-bar down to the radiator-section it is designed to bore, substantially as shown in Fig. 7, where the dotted lines 27 represent a portion of a radiator-section. As it continues its movement around the cam, Fig. 4, from c to d, theV boring-bar receives a slow downward movement while boring through the upper side of the section. From the point CZ during its circular movement around the cam it takes a quick down movement between the upper and lower inner sides of the section, or through the usual steam-space within a radiator-section, thereby moving from d to e, (shown in Fig. 3,) and in moving from c to f it again receives a slow boring movement through the lower side of the section until it reaches the point f, which carries the end of the boring-bar through. From the point f it now takes a quick movement up to the starting-point a, as shown in Fig. 6. By this time the section, which moves around the cam with the rest of the mechanism, has returned to the operator ornearly to him, when it is taken off and another put in its place to pass through the same operation, the machine being made to revolve slowly enough to enable the operator to conveniently put on and take off the sections at the proper time; or the several movements of the cam may be so timed that one man may put the sections onto the machine and at a specified point of its revolution another man may be stationed to take them olf without in anyway changing the nature of this invention.

Vhen a radiator-section is put on to be bored and milled, it is rigidly fixed in its place, as shown in Fig. 7, by means of a sleeve 23, which slides up and down over the sleeve 2O within the bearing 17. Through the side of the bearing 17 is an angular slot or opening 29, (see Figs. 1 and 9, where this slot 29 is shown,) through which passes a handlever 30, which is rigidly fastened to the sleeve 23. It will now be seen that by turning the handle 30 the sleeve may be raised or lowered, so that by pulling it forward through the inclined slot the sleeveV can be brought down to hold with considerable force on the top side of the section, as shown by the dotted lines 31 in Fig. 7, or raised up to release the section by turning it back again.

The milling of both sides or the faces of the bosses that project slightly from each side of a radiator-section is done on the upper side of the section by the milling end or under face of the sleeve 20, which is provided with a series of radial milling-teeth 32. (See Fig. 7 The lower end of the boring-bar is placed down far enough to permit it to pass just through the lower side of the section at the time the milling-teeth 32 commence Work on the proj ecting boss on that side, and the cam 12j ust completes the downward movement of the boring-barwhen the milling operation is completed. The under side of the section is milled at the same time by a hollow cylindrical milling-tool 33, set in a vertical bearing in each of the arms 14, so that the top part, which is provided with a series of milling-teeth 34, (see Figs. 7 and 9,) projects up far enough to mill the face of the lower side. It receives its upward movement sufficiently far to do the required milling by means of a curved raised portion 35.` (Shown in Figs. 7 and 10.) This curved portion 35 is provided at its forward end with a slight incline 36, which gradually inclines from the top of the wheel 2 (on which it is placed) up to the horizontal portion 35, to enable it to pass under the lower end 33 of the milling-tool to raise it up as the tool is moved over theA raised portion 35 in its travel around the machine. Of course it will be noticed that as each arm 14 passes over the portion 35 each milling-tool 33 (of which there is one on each arm) is successively operated upon to mill the under face of the section. These milling-tools receive their rotary or cutting movements by means of a spur-gear 36', (shown in Figs. 7 and 9,) which is rigidly secured to each of the milling-tools in any IOO IIO

Well-known way. The gear-wheel 36a receives its movement from a pinion 37, mounted on the vertical shaft 38. Atthe top of the shaft 38 is a small gear-wheel 39. vThis wheel in turnr gears in with Ithe gear-wheel 40, which gears in with the gear-wheel 11, and receives its movements by means of the driving-pulley S and bevel gear-wheels 9 and 10. The boring-bar receives its rotary movement from this wheel 40, and at the same time has an easy up and down sliding movement therein, and is prevented from turning in the wheel by a feather 40.

Sometimes it is necessary to mill a small portion at the other end on each side of a radiator-section while the opposite end is being milled. This may be donc by means of a carriage 41, (shown in Figs. 1 and 2,) adapted to slide on the radial arms 14. On each carriage 41 are mounted four milling-wheels 42, one pair above the other, (see Fig. 2,) the two pairs of milling-wheels mounted on shafts 43 being sufficiently far apart to permit the end of the section to pass between them and be faced off or milled. The carriages receive their forward sliding movement or toward the center of the machine while working or milling by means of a friction-roller 44, mounted on a pin under each carriage, so as to turn easily. On the stationary base 1 is a series of radial arms 45 (shown in Fig. 1) corre.

sponding in number with the arms 14. These arms 45 have a longitudinal slot down vertically through them, substantially as shown by the dotted lines 46 in Fig. 2. In this slot is secured by a nut 47 a vertical pin 48, (see Fig. 1,) upon which is mountedv a friction- Wheel 49. From this construction it will be seen that the wheel 49 maybe easily adjusted back and forth in the slotted portion of the arm 45, and that it may be adjusted so that every time tho wheel 44 passes the wheel 49 the carriage will be pushed forward in proportion as the peripheries of the contact sides of the wheels pass by each other. The backward movement of the carriage is produced by a spiral spring 50 (shown in Fig. 1) and a rod 51, which passes through a projecting lug 52 (projecting from the arm 14) and moves easily back and forth therein. The spiral spring rests against this lug, and its opposite end of the spring 50 rests against a fixed collar 53 on the rod 51. The opposite end of the rod 51 passes through a hole in the bottom of the carriage 41 and is secured by a setserew 54. This construction permits the carriage to be adjusted along the arm 14 at any desired point to suit either long or short radiator-sections. The milling-wheels receive their required rotary movements by means of gearing, as follows: The gear-Wheels 55, mounted on the milling-wheel shafts 43, both connect with the gear-wheel 5G. (Shown in Fig. 2.) To the face of the gear-wheel 56 is rigidly secured a bevel gear-wheel 57. The Wheel 57 gears in with the bevel-pinion 58, which is mounted on the shaft 59, which shaft is provided With a well-known feather, so that the pinion 5S can slide longitudinally along shaft 59 without turning on it. The shaft 59 is mounted in bearings 60 on the arm 14 and is provided with a bevel-pinion 61 at its opposite end, (see Figs. 1 and 2,) which gears in with the bevel-wheel 62 on the shaft 38. At the top of the shaft 36 is a spur gear-wheel 39', which gears in with the spur-wheel 40, receiving a rotary motion from the spur-gear 11, bevel-gears 9 and 10, and the drawingshaft 7, and pulley 8.

When a radiator-sect-ion is placed on the machine to be operated on, it is necessary to have both ends supported. This is done by means of the movable supporting-piece y63, one of which is shown in Figs. 1 and`2. It is made to clasp over the sides of the arm 14, and is provided with a set-screw 64 on the under side to fasten it at any point desired. (Shown in Fig. 1.) The sleeve 13 and the radial arms 14, together with their accompanying operating mechanism, receive a very slow rotary movement on the central supporting-shaft 3, as follows: The driving-pulley 3, shaft 7, and bevel-gearing 9 and 10 turn the gear-wheel 11, the wheel 11 gears in with the spur-Wheel 40, and 40 with the gear-wheel 39, and gear-wheel 39 turns the sha-ft 38. At the bottom of the shaft 38 (see Figs. 1 and 9) is a small pinion 65. The pinion G5 gears in with a spur-Wheel 66, mounted on a pin 67 in the arm 14, (shown in Fig. 7,) and belowT the gear-wheel 66, rigidly secured to it, is a small pinion 68, and the pinion 68 gears in with the stationary spur-Wheel 2, around which the pinion 68 moves and turns the whole mechanism around the vertical shaft 3 with the required slow motion. r

l claim as my invention- 1. In a machine for boring and milling radiator-sections, the combination of a supporting-base, a vertical supporting-shaft mounted on said base and supporting the driving meehanism, a sleeve mounted on the supportingshaft, carrying' the boring .and milling mechanism, and a train of gearing connecting with the driving mechanism and with a stationary gear-wheel on the base for giving the sleeve and operating mechanism a rotary motion, i

substantially as described.

2. In a machine for boring and milling radiator-sections, the combination, with a supporting-base, of a stationary horizontal spur gear-wheel, a vertical supportingshaft, a sleeve mounted so as to turn on said shaft, carrying the supporting-frames, in which is mounted the boring mechanism,a tixedirregularly-grooved cam rigidly secured to the verti= cal supporting-shaft, friction-rollers projecting into the grooved cam and connected with the boring-bars, the driving-shaft and gearing mounted on the supporting-shaft, and an intermediate train of gearing connecting it with the stationary spur-gearing on the base for giving the friction-rollers and boring mech-f anism a rotary motion around the cam and TOO IIO

the required vertical movements to the boring-bars While boring a radiator-section, substantially as described.

3. In a machine for boring and milling radiators, the combination of a supporting-base, a horizontal spur gear-wheel rigidly fixed on Said base, a vertical supporting-shaft carrying the frame-work with the milling and boring mechanism, a cam connected to the vertical shaft, and friction-rollers operating in .said cam for giving the boring-bars and milllng mechanism their proper vert-ical movements, a means for supporting and holding` a radiator-section in position While being operated upon, a train of gearing connecting Jthe driving-gearing with the stationary gear on the base and with the millingfrmechanism, and boring-bars for giving all their required rotary movements, substantially as described.

4. In a machine for boring and milling radiator-sections, the combination, with the boring-bar, of a surrounding sleeve 28, mounted in the same bearing, and a means for moving it down onto a radiator-section and holdingit while the boring-bar operates through it. on the section, substantially as described.

5. In a machine for boring and milling radiato1'-sections,tl1e combination of a supporting-base having a xed or stationary horizontal spur-Wheel, a central vertical supporting-shaft mounted on said base, a sleeve mounted on said vertical supporting-shaft having a series of radiating arms, each carrying a lower milling device, a corresponding double series of arms having journals in which :the point they were successively put on to the point from which they are removed, substantially as described.

6. In a machine for boring and'milling radiator-sections, a grooved cam provided with a horizontal portion a for keeping the boringbar at a stationary elevation, a portion b c,

for causing it to drop down to the radiator-section, a portion from c tod for givingit agradual downward motion While boring through the upper side lof a section, a portion from d to e for permitting it to drop down to the lower4 inner sideof the section, aportion from e tof for giving it a slow down movement while boring through the lower side of the section, and a rising portion from f to a for bringing it up to the starting-point, substantially as described.

ORRIN BRYANT.

` Witnesses:

JAMES SANGSTER, CoRA J. BLAKELEY. 

